I wrote it roughly.
Hope it helps.
I am sorry.
NEED HELP PLZ The following table shows the number of hours some students in two neighborhoods spend walking to school each wee
k: Neighborhood A 5 2 4 2 5 5 4 5 2 Neighborhood B 4 5 5 1 12 2 2 1 3 Part A: Create a five-number summary and calculate the interquartile range for the two sets of data. (6 points) Part B: Are the box plots symmetric? Justify your answer. (4 points)
1 answer:
Firstly, order the two data set from smallest to largest as shown in diagram below
The value of median, Q2 is the 5th value of both set
The value of Q1 and Q3 is the first and third quarter of the set
The range of data set one is 5-2=3 and of set two is 12-1=11
The interquartile range of set one is 5 - 2 = 3
The interquartile range of set two is 5 - 1.5 = 3.5
The box plot is not symmetrical for either data set
The value of median, Q2 is the 5th value of both set
The value of Q1 and Q3 is the first and third quarter of the set
The range of data set one is 5-2=3 and of set two is 12-1=11
The interquartile range of set one is 5 - 2 = 3
The interquartile range of set two is 5 - 1.5 = 3.5
The box plot is not symmetrical for either data set
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The percentage, if the new cost was 84% of the original is 40%
Let the cost of the item be x.
When the price increased by y%, the new price is:
When the price decreased by the same percentage (i.e. y%), the new price is:
The cost is said to be 84% of the original price.
So, we have:
Divide both sides by x
Apply the difference of two squares
Subtract 1 from both sides of the equation
Cancel out the common factors
Take the square root of both sides
Multiply both sides by 100
Hence, the percentage is 40%
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